I seem to remember someone on Sawmill who had put "LV style" set screws on on ECE smoother to keep the iron centered in the mouth. On my smoother I have to fiddle with the iron when I replace it as it wants to go to the side of the mouth. The lateral adjuster on the ECE is not much use -- I just center the blade itself. Has anyone tried drilling and tapping the plane for set screws? Was it an improvement?